Video embedded from www.CNBC.com.
Mad Money host Jim Cramer explains a key concept he learned in his early days of investing.
Risk tolerance matters to individual investors, which is why suitability is so critical, he says.
Cramer also shares why buying stocks does not have to be a &quot;caveat emptor.&quot;
Books by Jim Cramer: http://amzn.to/2j8LxlF